hypersonic

N เกี่ยวกับ ความเร็ว ที่ เร็ว กว่า ความเร็ว เสียง อย่างน้อย  5 เท่า 

hypersonic

hy per son ic |ˌhīpərˈsänik ˌhaɪpərˈsɑnɪk | ▶adjective 1 relating to speeds of more than five times the speed of sound (Mach 5 ). 2 relating to sound frequencies above about a thousand million hertz. DERIVATIVES hy per son i cal ly |-ik (ə )lē |adverb ORIGIN 1930s ( sense 2 ): from hyper- ‘beyond, exceeding, ’ on the pattern of supersonic and ultrasonic .

hypersonic

hyper |son ¦ic |hʌɪpəˈsɒnɪk | ▶adjective 1 relating to speeds of more than five times the speed of sound (Mach 5 ). 2 relating to sound frequencies above about a thousand million hertz. DERIVATIVES hypersonically adverb ORIGIN 1930s (in sense 2 ): from hyper- ‘beyond, exceeding ’, on the pattern of supersonic and ultrasonic .

hypersonic

h ỳ per s ó nic 形容詞 〘物理 〙極超音速の 〘音速の5倍 (以上 )の速度 〙.